<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright (C) 2008 The Guava Authors<a name="line.2"></a>
<span class="sourceLineNo">003</span> *<a name="line.3"></a>
<span class="sourceLineNo">004</span> * Licensed under the Apache License, Version 2.0 (the "License");<a name="line.4"></a>
<span class="sourceLineNo">005</span> * you may not use this file except in compliance with the License.<a name="line.5"></a>
<span class="sourceLineNo">006</span> * You may obtain a copy of the License at<a name="line.6"></a>
<span class="sourceLineNo">007</span> *<a name="line.7"></a>
<span class="sourceLineNo">008</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * Unless required by applicable law or agreed to in writing, software<a name="line.10"></a>
<span class="sourceLineNo">011</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.11"></a>
<span class="sourceLineNo">012</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.12"></a>
<span class="sourceLineNo">013</span> * See the License for the specific language governing permissions and<a name="line.13"></a>
<span class="sourceLineNo">014</span> * limitations under the License.<a name="line.14"></a>
<span class="sourceLineNo">015</span> */<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>package com.google.common.collect;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>import static com.google.common.base.Preconditions.checkArgument;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import static com.google.common.base.Preconditions.checkNotNull;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import com.google.common.annotations.Beta;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import com.google.common.annotations.GwtCompatible;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import com.google.common.base.Function;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import com.google.common.base.Objects;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import com.google.common.base.Supplier;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import com.google.common.collect.Collections2.TransformedCollection;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import com.google.common.collect.Table.Cell;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>import java.io.Serializable;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import java.util.Collection;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import java.util.Collections;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import java.util.Map;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import java.util.Set;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import java.util.SortedMap;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import java.util.SortedSet;<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>import javax.annotation.Nullable;<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span>/**<a name="line.40"></a>
<span class="sourceLineNo">041</span> * Provides static methods that involve a {@code Table}.<a name="line.41"></a>
<span class="sourceLineNo">042</span> * <a name="line.42"></a>
<span class="sourceLineNo">043</span> * &lt;p&gt;See the Guava User Guide article on &lt;a href=<a name="line.43"></a>
<span class="sourceLineNo">044</span> * "http://code.google.com/p/guava-libraries/wiki/CollectionUtilitiesExplained#Tables"&gt;<a name="line.44"></a>
<span class="sourceLineNo">045</span> * {@code Tables}&lt;/a&gt;.<a name="line.45"></a>
<span class="sourceLineNo">046</span> *<a name="line.46"></a>
<span class="sourceLineNo">047</span> * @author Jared Levy<a name="line.47"></a>
<span class="sourceLineNo">048</span> * @author Louis Wasserman<a name="line.48"></a>
<span class="sourceLineNo">049</span> * @since 7.0<a name="line.49"></a>
<span class="sourceLineNo">050</span> */<a name="line.50"></a>
<span class="sourceLineNo">051</span>@GwtCompatible<a name="line.51"></a>
<span class="sourceLineNo">052</span>public final class Tables {<a name="line.52"></a>
<span class="sourceLineNo">053</span>  private Tables() {}<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>  /**<a name="line.55"></a>
<span class="sourceLineNo">056</span>   * Returns an immutable cell with the specified row key, column key, and<a name="line.56"></a>
<span class="sourceLineNo">057</span>   * value.<a name="line.57"></a>
<span class="sourceLineNo">058</span>   *<a name="line.58"></a>
<span class="sourceLineNo">059</span>   * &lt;p&gt;The returned cell is serializable.<a name="line.59"></a>
<span class="sourceLineNo">060</span>   *<a name="line.60"></a>
<span class="sourceLineNo">061</span>   * @param rowKey the row key to be associated with the returned cell<a name="line.61"></a>
<span class="sourceLineNo">062</span>   * @param columnKey the column key to be associated with the returned cell<a name="line.62"></a>
<span class="sourceLineNo">063</span>   * @param value the value to be associated with the returned cell<a name="line.63"></a>
<span class="sourceLineNo">064</span>   */<a name="line.64"></a>
<span class="sourceLineNo">065</span>  public static &lt;R, C, V&gt; Cell&lt;R, C, V&gt; immutableCell(<a name="line.65"></a>
<span class="sourceLineNo">066</span>      @Nullable R rowKey, @Nullable C columnKey, @Nullable V value) {<a name="line.66"></a>
<span class="sourceLineNo">067</span>    return new ImmutableCell&lt;R, C, V&gt;(rowKey, columnKey, value);<a name="line.67"></a>
<span class="sourceLineNo">068</span>  }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>  static final class ImmutableCell&lt;R, C, V&gt;<a name="line.70"></a>
<span class="sourceLineNo">071</span>      extends AbstractCell&lt;R, C, V&gt; implements Serializable {<a name="line.71"></a>
<span class="sourceLineNo">072</span>    private final R rowKey;<a name="line.72"></a>
<span class="sourceLineNo">073</span>    private final C columnKey;<a name="line.73"></a>
<span class="sourceLineNo">074</span>    private final V value;<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span>    ImmutableCell(<a name="line.76"></a>
<span class="sourceLineNo">077</span>        @Nullable R rowKey, @Nullable C columnKey, @Nullable V value) {<a name="line.77"></a>
<span class="sourceLineNo">078</span>      this.rowKey = rowKey;<a name="line.78"></a>
<span class="sourceLineNo">079</span>      this.columnKey = columnKey;<a name="line.79"></a>
<span class="sourceLineNo">080</span>      this.value = value;<a name="line.80"></a>
<span class="sourceLineNo">081</span>    }<a name="line.81"></a>
<span class="sourceLineNo">082</span><a name="line.82"></a>
<span class="sourceLineNo">083</span>    @Override<a name="line.83"></a>
<span class="sourceLineNo">084</span>    public R getRowKey() {<a name="line.84"></a>
<span class="sourceLineNo">085</span>      return rowKey;<a name="line.85"></a>
<span class="sourceLineNo">086</span>    }<a name="line.86"></a>
<span class="sourceLineNo">087</span>    @Override<a name="line.87"></a>
<span class="sourceLineNo">088</span>    public C getColumnKey() {<a name="line.88"></a>
<span class="sourceLineNo">089</span>      return columnKey;<a name="line.89"></a>
<span class="sourceLineNo">090</span>    }<a name="line.90"></a>
<span class="sourceLineNo">091</span>    @Override<a name="line.91"></a>
<span class="sourceLineNo">092</span>    public V getValue() {<a name="line.92"></a>
<span class="sourceLineNo">093</span>      return value;<a name="line.93"></a>
<span class="sourceLineNo">094</span>    }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>    private static final long serialVersionUID = 0;<a name="line.96"></a>
<span class="sourceLineNo">097</span>  }<a name="line.97"></a>
<span class="sourceLineNo">098</span><a name="line.98"></a>
<span class="sourceLineNo">099</span>  abstract static class AbstractCell&lt;R, C, V&gt; implements Cell&lt;R, C, V&gt; {<a name="line.99"></a>
<span class="sourceLineNo">100</span>    // needed for serialization<a name="line.100"></a>
<span class="sourceLineNo">101</span>    AbstractCell() {}<a name="line.101"></a>
<span class="sourceLineNo">102</span><a name="line.102"></a>
<span class="sourceLineNo">103</span>    @Override public boolean equals(Object obj) {<a name="line.103"></a>
<span class="sourceLineNo">104</span>      if (obj == this) {<a name="line.104"></a>
<span class="sourceLineNo">105</span>        return true;<a name="line.105"></a>
<span class="sourceLineNo">106</span>      }<a name="line.106"></a>
<span class="sourceLineNo">107</span>      if (obj instanceof Cell) {<a name="line.107"></a>
<span class="sourceLineNo">108</span>        Cell&lt;?, ?, ?&gt; other = (Cell&lt;?, ?, ?&gt;) obj;<a name="line.108"></a>
<span class="sourceLineNo">109</span>        return Objects.equal(getRowKey(), other.getRowKey())<a name="line.109"></a>
<span class="sourceLineNo">110</span>            &amp;&amp; Objects.equal(getColumnKey(), other.getColumnKey())<a name="line.110"></a>
<span class="sourceLineNo">111</span>            &amp;&amp; Objects.equal(getValue(), other.getValue());<a name="line.111"></a>
<span class="sourceLineNo">112</span>      }<a name="line.112"></a>
<span class="sourceLineNo">113</span>      return false;<a name="line.113"></a>
<span class="sourceLineNo">114</span>    }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span>    @Override public int hashCode() {<a name="line.116"></a>
<span class="sourceLineNo">117</span>      return Objects.hashCode(getRowKey(), getColumnKey(), getValue());<a name="line.117"></a>
<span class="sourceLineNo">118</span>    }<a name="line.118"></a>
<span class="sourceLineNo">119</span><a name="line.119"></a>
<span class="sourceLineNo">120</span>    @Override public String toString() {<a name="line.120"></a>
<span class="sourceLineNo">121</span>      return "(" + getRowKey() + "," + getColumnKey() + ")=" + getValue();<a name="line.121"></a>
<span class="sourceLineNo">122</span>    }<a name="line.122"></a>
<span class="sourceLineNo">123</span>  }<a name="line.123"></a>
<span class="sourceLineNo">124</span><a name="line.124"></a>
<span class="sourceLineNo">125</span>  /**<a name="line.125"></a>
<span class="sourceLineNo">126</span>   * Creates a transposed view of a given table that flips its row and column<a name="line.126"></a>
<span class="sourceLineNo">127</span>   * keys. In other words, calling {@code get(columnKey, rowKey)} on the<a name="line.127"></a>
<span class="sourceLineNo">128</span>   * generated table always returns the same value as calling {@code<a name="line.128"></a>
<span class="sourceLineNo">129</span>   * get(rowKey, columnKey)} on the original table. Updating the original table<a name="line.129"></a>
<span class="sourceLineNo">130</span>   * changes the contents of the transposed table and vice versa.<a name="line.130"></a>
<span class="sourceLineNo">131</span>   *<a name="line.131"></a>
<span class="sourceLineNo">132</span>   * &lt;p&gt;The returned table supports update operations as long as the input table<a name="line.132"></a>
<span class="sourceLineNo">133</span>   * supports the analogous operation with swapped rows and columns. For<a name="line.133"></a>
<span class="sourceLineNo">134</span>   * example, in a {@link HashBasedTable} instance, {@code<a name="line.134"></a>
<span class="sourceLineNo">135</span>   * rowKeySet().iterator()} supports {@code remove()} but {@code<a name="line.135"></a>
<span class="sourceLineNo">136</span>   * columnKeySet().iterator()} doesn't. With a transposed {@link<a name="line.136"></a>
<span class="sourceLineNo">137</span>   * HashBasedTable}, it's the other way around.<a name="line.137"></a>
<span class="sourceLineNo">138</span>   */<a name="line.138"></a>
<span class="sourceLineNo">139</span>  public static &lt;R, C, V&gt; Table&lt;C, R, V&gt; transpose(Table&lt;R, C, V&gt; table) {<a name="line.139"></a>
<span class="sourceLineNo">140</span>    return (table instanceof TransposeTable)<a name="line.140"></a>
<span class="sourceLineNo">141</span>        ? ((TransposeTable&lt;R, C, V&gt;) table).original<a name="line.141"></a>
<span class="sourceLineNo">142</span>        : new TransposeTable&lt;C, R, V&gt;(table);<a name="line.142"></a>
<span class="sourceLineNo">143</span>  }<a name="line.143"></a>
<span class="sourceLineNo">144</span><a name="line.144"></a>
<span class="sourceLineNo">145</span>  private static class TransposeTable&lt;C, R, V&gt; implements Table&lt;C, R, V&gt; {<a name="line.145"></a>
<span class="sourceLineNo">146</span>    final Table&lt;R, C, V&gt; original;<a name="line.146"></a>
<span class="sourceLineNo">147</span><a name="line.147"></a>
<span class="sourceLineNo">148</span>    TransposeTable(Table&lt;R, C, V&gt; original) {<a name="line.148"></a>
<span class="sourceLineNo">149</span>      this.original = checkNotNull(original);<a name="line.149"></a>
<span class="sourceLineNo">150</span>    }<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span>    @Override<a name="line.152"></a>
<span class="sourceLineNo">153</span>    public void clear() {<a name="line.153"></a>
<span class="sourceLineNo">154</span>      original.clear();<a name="line.154"></a>
<span class="sourceLineNo">155</span>    }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span>    @Override<a name="line.157"></a>
<span class="sourceLineNo">158</span>    public Map&lt;C, V&gt; column(R columnKey) {<a name="line.158"></a>
<span class="sourceLineNo">159</span>      return original.row(columnKey);<a name="line.159"></a>
<span class="sourceLineNo">160</span>    }<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span>    @Override<a name="line.162"></a>
<span class="sourceLineNo">163</span>    public Set&lt;R&gt; columnKeySet() {<a name="line.163"></a>
<span class="sourceLineNo">164</span>      return original.rowKeySet();<a name="line.164"></a>
<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
<span class="sourceLineNo">166</span><a name="line.166"></a>
<span class="sourceLineNo">167</span>    @Override<a name="line.167"></a>
<span class="sourceLineNo">168</span>    public Map&lt;R, Map&lt;C, V&gt;&gt; columnMap() {<a name="line.168"></a>
<span class="sourceLineNo">169</span>      return original.rowMap();<a name="line.169"></a>
<span class="sourceLineNo">170</span>    }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span>    @Override<a name="line.172"></a>
<span class="sourceLineNo">173</span>    public boolean contains(<a name="line.173"></a>
<span class="sourceLineNo">174</span>        @Nullable Object rowKey, @Nullable Object columnKey) {<a name="line.174"></a>
<span class="sourceLineNo">175</span>      return original.contains(columnKey, rowKey);<a name="line.175"></a>
<span class="sourceLineNo">176</span>    }<a name="line.176"></a>
<span class="sourceLineNo">177</span><a name="line.177"></a>
<span class="sourceLineNo">178</span>    @Override<a name="line.178"></a>
<span class="sourceLineNo">179</span>    public boolean containsColumn(@Nullable Object columnKey) {<a name="line.179"></a>
<span class="sourceLineNo">180</span>      return original.containsRow(columnKey);<a name="line.180"></a>
<span class="sourceLineNo">181</span>    }<a name="line.181"></a>
<span class="sourceLineNo">182</span><a name="line.182"></a>
<span class="sourceLineNo">183</span>    @Override<a name="line.183"></a>
<span class="sourceLineNo">184</span>    public boolean containsRow(@Nullable Object rowKey) {<a name="line.184"></a>
<span class="sourceLineNo">185</span>      return original.containsColumn(rowKey);<a name="line.185"></a>
<span class="sourceLineNo">186</span>    }<a name="line.186"></a>
<span class="sourceLineNo">187</span><a name="line.187"></a>
<span class="sourceLineNo">188</span>    @Override<a name="line.188"></a>
<span class="sourceLineNo">189</span>    public boolean containsValue(@Nullable Object value) {<a name="line.189"></a>
<span class="sourceLineNo">190</span>      return original.containsValue(value);<a name="line.190"></a>
<span class="sourceLineNo">191</span>    }<a name="line.191"></a>
<span class="sourceLineNo">192</span><a name="line.192"></a>
<span class="sourceLineNo">193</span>    @Override<a name="line.193"></a>
<span class="sourceLineNo">194</span>    public V get(@Nullable Object rowKey, @Nullable Object columnKey) {<a name="line.194"></a>
<span class="sourceLineNo">195</span>      return original.get(columnKey, rowKey);<a name="line.195"></a>
<span class="sourceLineNo">196</span>    }<a name="line.196"></a>
<span class="sourceLineNo">197</span><a name="line.197"></a>
<span class="sourceLineNo">198</span>    @Override<a name="line.198"></a>
<span class="sourceLineNo">199</span>    public boolean isEmpty() {<a name="line.199"></a>
<span class="sourceLineNo">200</span>      return original.isEmpty();<a name="line.200"></a>
<span class="sourceLineNo">201</span>    }<a name="line.201"></a>
<span class="sourceLineNo">202</span><a name="line.202"></a>
<span class="sourceLineNo">203</span>    @Override<a name="line.203"></a>
<span class="sourceLineNo">204</span>    public V put(C rowKey, R columnKey, V value) {<a name="line.204"></a>
<span class="sourceLineNo">205</span>      return original.put(columnKey, rowKey, value);<a name="line.205"></a>
<span class="sourceLineNo">206</span>    }<a name="line.206"></a>
<span class="sourceLineNo">207</span><a name="line.207"></a>
<span class="sourceLineNo">208</span>    @Override<a name="line.208"></a>
<span class="sourceLineNo">209</span>    public void putAll(Table&lt;? extends C, ? extends R, ? extends V&gt; table) {<a name="line.209"></a>
<span class="sourceLineNo">210</span>      original.putAll(transpose(table));<a name="line.210"></a>
<span class="sourceLineNo">211</span>    }<a name="line.211"></a>
<span class="sourceLineNo">212</span><a name="line.212"></a>
<span class="sourceLineNo">213</span>    @Override<a name="line.213"></a>
<span class="sourceLineNo">214</span>    public V remove(@Nullable Object rowKey, @Nullable Object columnKey) {<a name="line.214"></a>
<span class="sourceLineNo">215</span>      return original.remove(columnKey, rowKey);<a name="line.215"></a>
<span class="sourceLineNo">216</span>    }<a name="line.216"></a>
<span class="sourceLineNo">217</span><a name="line.217"></a>
<span class="sourceLineNo">218</span>    @Override<a name="line.218"></a>
<span class="sourceLineNo">219</span>    public Map&lt;R, V&gt; row(C rowKey) {<a name="line.219"></a>
<span class="sourceLineNo">220</span>      return original.column(rowKey);<a name="line.220"></a>
<span class="sourceLineNo">221</span>    }<a name="line.221"></a>
<span class="sourceLineNo">222</span><a name="line.222"></a>
<span class="sourceLineNo">223</span>    @Override<a name="line.223"></a>
<span class="sourceLineNo">224</span>    public Set&lt;C&gt; rowKeySet() {<a name="line.224"></a>
<span class="sourceLineNo">225</span>      return original.columnKeySet();<a name="line.225"></a>
<span class="sourceLineNo">226</span>    }<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span>    @Override<a name="line.228"></a>
<span class="sourceLineNo">229</span>    public Map&lt;C, Map&lt;R, V&gt;&gt; rowMap() {<a name="line.229"></a>
<span class="sourceLineNo">230</span>      return original.columnMap();<a name="line.230"></a>
<span class="sourceLineNo">231</span>    }<a name="line.231"></a>
<span class="sourceLineNo">232</span><a name="line.232"></a>
<span class="sourceLineNo">233</span>    @Override<a name="line.233"></a>
<span class="sourceLineNo">234</span>    public int size() {<a name="line.234"></a>
<span class="sourceLineNo">235</span>      return original.size();<a name="line.235"></a>
<span class="sourceLineNo">236</span>    }<a name="line.236"></a>
<span class="sourceLineNo">237</span><a name="line.237"></a>
<span class="sourceLineNo">238</span>    @Override<a name="line.238"></a>
<span class="sourceLineNo">239</span>    public Collection&lt;V&gt; values() {<a name="line.239"></a>
<span class="sourceLineNo">240</span>      return original.values();<a name="line.240"></a>
<span class="sourceLineNo">241</span>    }<a name="line.241"></a>
<span class="sourceLineNo">242</span><a name="line.242"></a>
<span class="sourceLineNo">243</span>    @Override public boolean equals(@Nullable Object obj) {<a name="line.243"></a>
<span class="sourceLineNo">244</span>      if (obj == this) {<a name="line.244"></a>
<span class="sourceLineNo">245</span>        return true;<a name="line.245"></a>
<span class="sourceLineNo">246</span>      }<a name="line.246"></a>
<span class="sourceLineNo">247</span>      if (obj instanceof Table) {<a name="line.247"></a>
<span class="sourceLineNo">248</span>        Table&lt;?, ?, ?&gt; other = (Table&lt;?, ?, ?&gt;) obj;<a name="line.248"></a>
<span class="sourceLineNo">249</span>        return cellSet().equals(other.cellSet());<a name="line.249"></a>
<span class="sourceLineNo">250</span>      }<a name="line.250"></a>
<span class="sourceLineNo">251</span>      return false;<a name="line.251"></a>
<span class="sourceLineNo">252</span>    }<a name="line.252"></a>
<span class="sourceLineNo">253</span><a name="line.253"></a>
<span class="sourceLineNo">254</span>    @Override public int hashCode() {<a name="line.254"></a>
<span class="sourceLineNo">255</span>      return cellSet().hashCode();<a name="line.255"></a>
<span class="sourceLineNo">256</span>    }<a name="line.256"></a>
<span class="sourceLineNo">257</span><a name="line.257"></a>
<span class="sourceLineNo">258</span>    @Override public String toString() {<a name="line.258"></a>
<span class="sourceLineNo">259</span>      return rowMap().toString();<a name="line.259"></a>
<span class="sourceLineNo">260</span>    }<a name="line.260"></a>
<span class="sourceLineNo">261</span><a name="line.261"></a>
<span class="sourceLineNo">262</span>    // Will cast TRANSPOSE_CELL to a type that always succeeds<a name="line.262"></a>
<span class="sourceLineNo">263</span>    private static final Function&lt;Cell&lt;?, ?, ?&gt;, Cell&lt;?, ?, ?&gt;&gt; TRANSPOSE_CELL =<a name="line.263"></a>
<span class="sourceLineNo">264</span>        new Function&lt;Cell&lt;?, ?, ?&gt;, Cell&lt;?, ?, ?&gt;&gt;() {<a name="line.264"></a>
<span class="sourceLineNo">265</span>          @Override<a name="line.265"></a>
<span class="sourceLineNo">266</span>          public Cell&lt;?, ?, ?&gt; apply(Cell&lt;?, ?, ?&gt; cell) {<a name="line.266"></a>
<span class="sourceLineNo">267</span>            return immutableCell(<a name="line.267"></a>
<span class="sourceLineNo">268</span>                cell.getColumnKey(), cell.getRowKey(), cell.getValue());<a name="line.268"></a>
<span class="sourceLineNo">269</span>          }<a name="line.269"></a>
<span class="sourceLineNo">270</span>        };<a name="line.270"></a>
<span class="sourceLineNo">271</span><a name="line.271"></a>
<span class="sourceLineNo">272</span>    CellSet cellSet;<a name="line.272"></a>
<span class="sourceLineNo">273</span><a name="line.273"></a>
<span class="sourceLineNo">274</span>    @Override<a name="line.274"></a>
<span class="sourceLineNo">275</span>    public Set&lt;Cell&lt;C, R, V&gt;&gt; cellSet() {<a name="line.275"></a>
<span class="sourceLineNo">276</span>      CellSet result = cellSet;<a name="line.276"></a>
<span class="sourceLineNo">277</span>      return (result == null) ? cellSet = new CellSet() : result;<a name="line.277"></a>
<span class="sourceLineNo">278</span>    }<a name="line.278"></a>
<span class="sourceLineNo">279</span><a name="line.279"></a>
<span class="sourceLineNo">280</span>    class CellSet extends TransformedCollection&lt;Cell&lt;R, C, V&gt;, Cell&lt;C, R, V&gt;&gt;<a name="line.280"></a>
<span class="sourceLineNo">281</span>        implements Set&lt;Cell&lt;C, R, V&gt;&gt; {<a name="line.281"></a>
<span class="sourceLineNo">282</span>      // Casting TRANSPOSE_CELL to a type that always succeeds<a name="line.282"></a>
<span class="sourceLineNo">283</span>      @SuppressWarnings("unchecked")<a name="line.283"></a>
<span class="sourceLineNo">284</span>      CellSet() {<a name="line.284"></a>
<span class="sourceLineNo">285</span>        super(original.cellSet(), (Function) TRANSPOSE_CELL);<a name="line.285"></a>
<span class="sourceLineNo">286</span>      }<a name="line.286"></a>
<span class="sourceLineNo">287</span><a name="line.287"></a>
<span class="sourceLineNo">288</span>      @Override public boolean equals(Object obj) {<a name="line.288"></a>
<span class="sourceLineNo">289</span>        if (obj == this) {<a name="line.289"></a>
<span class="sourceLineNo">290</span>          return true;<a name="line.290"></a>
<span class="sourceLineNo">291</span>        }<a name="line.291"></a>
<span class="sourceLineNo">292</span>        if (!(obj instanceof Set)) {<a name="line.292"></a>
<span class="sourceLineNo">293</span>          return false;<a name="line.293"></a>
<span class="sourceLineNo">294</span>        }<a name="line.294"></a>
<span class="sourceLineNo">295</span>        Set&lt;?&gt; os = (Set&lt;?&gt;) obj;<a name="line.295"></a>
<span class="sourceLineNo">296</span>        if (os.size() != size()) {<a name="line.296"></a>
<span class="sourceLineNo">297</span>          return false;<a name="line.297"></a>
<span class="sourceLineNo">298</span>        }<a name="line.298"></a>
<span class="sourceLineNo">299</span>        return containsAll(os);<a name="line.299"></a>
<span class="sourceLineNo">300</span>      }<a name="line.300"></a>
<span class="sourceLineNo">301</span><a name="line.301"></a>
<span class="sourceLineNo">302</span>      @Override public int hashCode() {<a name="line.302"></a>
<span class="sourceLineNo">303</span>        return Sets.hashCodeImpl(this);<a name="line.303"></a>
<span class="sourceLineNo">304</span>      }<a name="line.304"></a>
<span class="sourceLineNo">305</span><a name="line.305"></a>
<span class="sourceLineNo">306</span>      @Override public boolean contains(Object obj) {<a name="line.306"></a>
<span class="sourceLineNo">307</span>        if (obj instanceof Cell) {<a name="line.307"></a>
<span class="sourceLineNo">308</span>          Cell&lt;?, ?, ?&gt; cell = (Cell&lt;?, ?, ?&gt;) obj;<a name="line.308"></a>
<span class="sourceLineNo">309</span>          return original.cellSet().contains(immutableCell(<a name="line.309"></a>
<span class="sourceLineNo">310</span>              cell.getColumnKey(), cell.getRowKey(), cell.getValue()));<a name="line.310"></a>
<span class="sourceLineNo">311</span>        }<a name="line.311"></a>
<span class="sourceLineNo">312</span>        return false;<a name="line.312"></a>
<span class="sourceLineNo">313</span>      }<a name="line.313"></a>
<span class="sourceLineNo">314</span><a name="line.314"></a>
<span class="sourceLineNo">315</span>      @Override public boolean remove(Object obj) {<a name="line.315"></a>
<span class="sourceLineNo">316</span>        if (obj instanceof Cell) {<a name="line.316"></a>
<span class="sourceLineNo">317</span>          Cell&lt;?, ?, ?&gt; cell = (Cell&lt;?, ?, ?&gt;) obj;<a name="line.317"></a>
<span class="sourceLineNo">318</span>          return original.cellSet().remove(immutableCell(<a name="line.318"></a>
<span class="sourceLineNo">319</span>              cell.getColumnKey(), cell.getRowKey(), cell.getValue()));<a name="line.319"></a>
<span class="sourceLineNo">320</span>        }<a name="line.320"></a>
<span class="sourceLineNo">321</span>        return false;<a name="line.321"></a>
<span class="sourceLineNo">322</span>      }<a name="line.322"></a>
<span class="sourceLineNo">323</span>    }<a name="line.323"></a>
<span class="sourceLineNo">324</span>  }<a name="line.324"></a>
<span class="sourceLineNo">325</span><a name="line.325"></a>
<span class="sourceLineNo">326</span>  /**<a name="line.326"></a>
<span class="sourceLineNo">327</span>   * Creates a table that uses the specified backing map and factory. It can<a name="line.327"></a>
<span class="sourceLineNo">328</span>   * generate a table based on arbitrary {@link Map} classes.<a name="line.328"></a>
<span class="sourceLineNo">329</span>   *<a name="line.329"></a>
<span class="sourceLineNo">330</span>   * &lt;p&gt;The {@code factory}-generated and {@code backingMap} classes determine<a name="line.330"></a>
<span class="sourceLineNo">331</span>   * the table iteration order. However, the table's {@code row()} method<a name="line.331"></a>
<span class="sourceLineNo">332</span>   * returns instances of a different class than {@code factory.get()} does.<a name="line.332"></a>
<span class="sourceLineNo">333</span>   *<a name="line.333"></a>
<span class="sourceLineNo">334</span>   * &lt;p&gt;Call this method only when the simpler factory methods in classes like<a name="line.334"></a>
<span class="sourceLineNo">335</span>   * {@link HashBasedTable} and {@link TreeBasedTable} won't suffice.<a name="line.335"></a>
<span class="sourceLineNo">336</span>   *<a name="line.336"></a>
<span class="sourceLineNo">337</span>   * &lt;p&gt;The views returned by the {@code Table} methods {@link Table#column},<a name="line.337"></a>
<span class="sourceLineNo">338</span>   * {@link Table#columnKeySet}, and {@link Table#columnMap} have iterators that<a name="line.338"></a>
<span class="sourceLineNo">339</span>   * don't support {@code remove()}. Otherwise, all optional operations are<a name="line.339"></a>
<span class="sourceLineNo">340</span>   * supported. Null row keys, columns keys, and values are not supported.<a name="line.340"></a>
<span class="sourceLineNo">341</span>   *<a name="line.341"></a>
<span class="sourceLineNo">342</span>   * &lt;p&gt;Lookups by row key are often faster than lookups by column key, because<a name="line.342"></a>
<span class="sourceLineNo">343</span>   * the data is stored in a {@code Map&lt;R, Map&lt;C, V&gt;&gt;}. A method call like<a name="line.343"></a>
<span class="sourceLineNo">344</span>   * {@code column(columnKey).get(rowKey)} still runs quickly, since the row key<a name="line.344"></a>
<span class="sourceLineNo">345</span>   * is provided. However, {@code column(columnKey).size()} takes longer, since<a name="line.345"></a>
<span class="sourceLineNo">346</span>   * an iteration across all row keys occurs.<a name="line.346"></a>
<span class="sourceLineNo">347</span>   *<a name="line.347"></a>
<span class="sourceLineNo">348</span>   * &lt;p&gt;Note that this implementation is not synchronized. If multiple threads<a name="line.348"></a>
<span class="sourceLineNo">349</span>   * access this table concurrently and one of the threads modifies the table,<a name="line.349"></a>
<span class="sourceLineNo">350</span>   * it must be synchronized externally.<a name="line.350"></a>
<span class="sourceLineNo">351</span>   *<a name="line.351"></a>
<span class="sourceLineNo">352</span>   * &lt;p&gt;The table is serializable if {@code backingMap}, {@code factory}, the<a name="line.352"></a>
<span class="sourceLineNo">353</span>   * maps generated by {@code factory}, and the table contents are all<a name="line.353"></a>
<span class="sourceLineNo">354</span>   * serializable.<a name="line.354"></a>
<span class="sourceLineNo">355</span>   *<a name="line.355"></a>
<span class="sourceLineNo">356</span>   * &lt;p&gt;Note: the table assumes complete ownership over of {@code backingMap}<a name="line.356"></a>
<span class="sourceLineNo">357</span>   * and the maps returned by {@code factory}. Those objects should not be<a name="line.357"></a>
<span class="sourceLineNo">358</span>   * manually updated and they should not use soft, weak, or phantom references.<a name="line.358"></a>
<span class="sourceLineNo">359</span>   *<a name="line.359"></a>
<span class="sourceLineNo">360</span>   * @param backingMap place to store the mapping from each row key to its<a name="line.360"></a>
<span class="sourceLineNo">361</span>   *     corresponding column key / value map<a name="line.361"></a>
<span class="sourceLineNo">362</span>   * @param factory supplier of new, empty maps that will each hold all column<a name="line.362"></a>
<span class="sourceLineNo">363</span>   *     key / value mappings for a given row key<a name="line.363"></a>
<span class="sourceLineNo">364</span>   * @throws IllegalArgumentException if {@code backingMap} is not empty<a name="line.364"></a>
<span class="sourceLineNo">365</span>   * @since 10.0<a name="line.365"></a>
<span class="sourceLineNo">366</span>   */<a name="line.366"></a>
<span class="sourceLineNo">367</span>  @Beta<a name="line.367"></a>
<span class="sourceLineNo">368</span>  public static &lt;R, C, V&gt; Table&lt;R, C, V&gt; newCustomTable(<a name="line.368"></a>
<span class="sourceLineNo">369</span>      Map&lt;R, Map&lt;C, V&gt;&gt; backingMap, Supplier&lt;? extends Map&lt;C, V&gt;&gt; factory) {<a name="line.369"></a>
<span class="sourceLineNo">370</span>    checkArgument(backingMap.isEmpty());<a name="line.370"></a>
<span class="sourceLineNo">371</span>    checkNotNull(factory);<a name="line.371"></a>
<span class="sourceLineNo">372</span>    // TODO(jlevy): Wrap factory to validate that the supplied maps are empty?<a name="line.372"></a>
<span class="sourceLineNo">373</span>    return new StandardTable&lt;R, C, V&gt;(backingMap, factory);<a name="line.373"></a>
<span class="sourceLineNo">374</span>  }<a name="line.374"></a>
<span class="sourceLineNo">375</span><a name="line.375"></a>
<span class="sourceLineNo">376</span>  /**<a name="line.376"></a>
<span class="sourceLineNo">377</span>   * Returns a view of a table where each value is transformed by a function.<a name="line.377"></a>
<span class="sourceLineNo">378</span>   * All other properties of the table, such as iteration order, are left<a name="line.378"></a>
<span class="sourceLineNo">379</span>   * intact.<a name="line.379"></a>
<span class="sourceLineNo">380</span>   *<a name="line.380"></a>
<span class="sourceLineNo">381</span>   * &lt;p&gt;Changes in the underlying table are reflected in this view. Conversely,<a name="line.381"></a>
<span class="sourceLineNo">382</span>   * this view supports removal operations, and these are reflected in the<a name="line.382"></a>
<span class="sourceLineNo">383</span>   * underlying table.<a name="line.383"></a>
<span class="sourceLineNo">384</span>   *<a name="line.384"></a>
<span class="sourceLineNo">385</span>   * &lt;p&gt;It's acceptable for the underlying table to contain null keys, and even<a name="line.385"></a>
<span class="sourceLineNo">386</span>   * null values provided that the function is capable of accepting null input.<a name="line.386"></a>
<span class="sourceLineNo">387</span>   * The transformed table might contain null values, if the function sometimes<a name="line.387"></a>
<span class="sourceLineNo">388</span>   * gives a null result.<a name="line.388"></a>
<span class="sourceLineNo">389</span>   *<a name="line.389"></a>
<span class="sourceLineNo">390</span>   * &lt;p&gt;The returned table is not thread-safe or serializable, even if the<a name="line.390"></a>
<span class="sourceLineNo">391</span>   * underlying table is.<a name="line.391"></a>
<span class="sourceLineNo">392</span>   *<a name="line.392"></a>
<span class="sourceLineNo">393</span>   * &lt;p&gt;The function is applied lazily, invoked when needed. This is necessary<a name="line.393"></a>
<span class="sourceLineNo">394</span>   * for the returned table to be a view, but it means that the function will be<a name="line.394"></a>
<span class="sourceLineNo">395</span>   * applied many times for bulk operations like {@link Table#containsValue} and<a name="line.395"></a>
<span class="sourceLineNo">396</span>   * {@code Table.toString()}. For this to perform well, {@code function} should<a name="line.396"></a>
<span class="sourceLineNo">397</span>   * be fast. To avoid lazy evaluation when the returned table doesn't need to<a name="line.397"></a>
<span class="sourceLineNo">398</span>   * be a view, copy the returned table into a new table of your choosing.<a name="line.398"></a>
<span class="sourceLineNo">399</span>   *<a name="line.399"></a>
<span class="sourceLineNo">400</span>   * @since 10.0<a name="line.400"></a>
<span class="sourceLineNo">401</span>   */<a name="line.401"></a>
<span class="sourceLineNo">402</span>  @Beta<a name="line.402"></a>
<span class="sourceLineNo">403</span>  public static &lt;R, C, V1, V2&gt; Table&lt;R, C, V2&gt; transformValues(<a name="line.403"></a>
<span class="sourceLineNo">404</span>      Table&lt;R, C, V1&gt; fromTable, Function&lt;? super V1, V2&gt; function) {<a name="line.404"></a>
<span class="sourceLineNo">405</span>    return new TransformedTable&lt;R, C, V1, V2&gt;(fromTable, function);<a name="line.405"></a>
<span class="sourceLineNo">406</span>  }<a name="line.406"></a>
<span class="sourceLineNo">407</span><a name="line.407"></a>
<span class="sourceLineNo">408</span>  private static class TransformedTable&lt;R, C, V1, V2&gt;<a name="line.408"></a>
<span class="sourceLineNo">409</span>      implements Table&lt;R, C, V2&gt; {<a name="line.409"></a>
<span class="sourceLineNo">410</span>    final Table&lt;R, C, V1&gt; fromTable;<a name="line.410"></a>
<span class="sourceLineNo">411</span>    final Function&lt;? super V1, V2&gt; function;<a name="line.411"></a>
<span class="sourceLineNo">412</span><a name="line.412"></a>
<span class="sourceLineNo">413</span>    TransformedTable(<a name="line.413"></a>
<span class="sourceLineNo">414</span>        Table&lt;R, C, V1&gt; fromTable, Function&lt;? super V1, V2&gt; function) {<a name="line.414"></a>
<span class="sourceLineNo">415</span>      this.fromTable = checkNotNull(fromTable);<a name="line.415"></a>
<span class="sourceLineNo">416</span>      this.function = checkNotNull(function);<a name="line.416"></a>
<span class="sourceLineNo">417</span>    }<a name="line.417"></a>
<span class="sourceLineNo">418</span><a name="line.418"></a>
<span class="sourceLineNo">419</span>    @Override public boolean contains(Object rowKey, Object columnKey) {<a name="line.419"></a>
<span class="sourceLineNo">420</span>      return fromTable.contains(rowKey, columnKey);<a name="line.420"></a>
<span class="sourceLineNo">421</span>    }<a name="line.421"></a>
<span class="sourceLineNo">422</span><a name="line.422"></a>
<span class="sourceLineNo">423</span>    @Override public boolean containsRow(Object rowKey) {<a name="line.423"></a>
<span class="sourceLineNo">424</span>      return fromTable.containsRow(rowKey);<a name="line.424"></a>
<span class="sourceLineNo">425</span>    }<a name="line.425"></a>
<span class="sourceLineNo">426</span><a name="line.426"></a>
<span class="sourceLineNo">427</span>    @Override public boolean containsColumn(Object columnKey) {<a name="line.427"></a>
<span class="sourceLineNo">428</span>      return fromTable.containsColumn(columnKey);<a name="line.428"></a>
<span class="sourceLineNo">429</span>    }<a name="line.429"></a>
<span class="sourceLineNo">430</span><a name="line.430"></a>
<span class="sourceLineNo">431</span>    @Override public boolean containsValue(Object value) {<a name="line.431"></a>
<span class="sourceLineNo">432</span>      return values().contains(value);<a name="line.432"></a>
<span class="sourceLineNo">433</span>    }<a name="line.433"></a>
<span class="sourceLineNo">434</span><a name="line.434"></a>
<span class="sourceLineNo">435</span>    @Override public V2 get(Object rowKey, Object columnKey) {<a name="line.435"></a>
<span class="sourceLineNo">436</span>      // The function is passed a null input only when the table contains a null<a name="line.436"></a>
<span class="sourceLineNo">437</span>      // value.<a name="line.437"></a>
<span class="sourceLineNo">438</span>      return contains(rowKey, columnKey)<a name="line.438"></a>
<span class="sourceLineNo">439</span>          ? function.apply(fromTable.get(rowKey, columnKey)) : null;<a name="line.439"></a>
<span class="sourceLineNo">440</span>    }<a name="line.440"></a>
<span class="sourceLineNo">441</span><a name="line.441"></a>
<span class="sourceLineNo">442</span>    @Override public boolean isEmpty() {<a name="line.442"></a>
<span class="sourceLineNo">443</span>      return fromTable.isEmpty();<a name="line.443"></a>
<span class="sourceLineNo">444</span>    }<a name="line.444"></a>
<span class="sourceLineNo">445</span><a name="line.445"></a>
<span class="sourceLineNo">446</span>    @Override public int size() {<a name="line.446"></a>
<span class="sourceLineNo">447</span>      return fromTable.size();<a name="line.447"></a>
<span class="sourceLineNo">448</span>    }<a name="line.448"></a>
<span class="sourceLineNo">449</span><a name="line.449"></a>
<span class="sourceLineNo">450</span>    @Override public void clear() {<a name="line.450"></a>
<span class="sourceLineNo">451</span>      fromTable.clear();<a name="line.451"></a>
<span class="sourceLineNo">452</span>    }<a name="line.452"></a>
<span class="sourceLineNo">453</span><a name="line.453"></a>
<span class="sourceLineNo">454</span>    @Override public V2 put(R rowKey, C columnKey, V2 value) {<a name="line.454"></a>
<span class="sourceLineNo">455</span>      throw new UnsupportedOperationException();<a name="line.455"></a>
<span class="sourceLineNo">456</span>    }<a name="line.456"></a>
<span class="sourceLineNo">457</span><a name="line.457"></a>
<span class="sourceLineNo">458</span>    @Override public void putAll(<a name="line.458"></a>
<span class="sourceLineNo">459</span>        Table&lt;? extends R, ? extends C, ? extends V2&gt; table) {<a name="line.459"></a>
<span class="sourceLineNo">460</span>      throw new UnsupportedOperationException();<a name="line.460"></a>
<span class="sourceLineNo">461</span>    }<a name="line.461"></a>
<span class="sourceLineNo">462</span><a name="line.462"></a>
<span class="sourceLineNo">463</span>    @Override public V2 remove(Object rowKey, Object columnKey) {<a name="line.463"></a>
<span class="sourceLineNo">464</span>      return contains(rowKey, columnKey)<a name="line.464"></a>
<span class="sourceLineNo">465</span>          ? function.apply(fromTable.remove(rowKey, columnKey)) : null;<a name="line.465"></a>
<span class="sourceLineNo">466</span>    }<a name="line.466"></a>
<span class="sourceLineNo">467</span><a name="line.467"></a>
<span class="sourceLineNo">468</span>    @Override public Map&lt;C, V2&gt; row(R rowKey) {<a name="line.468"></a>
<span class="sourceLineNo">469</span>      return Maps.transformValues(fromTable.row(rowKey), function);<a name="line.469"></a>
<span class="sourceLineNo">470</span>    }<a name="line.470"></a>
<span class="sourceLineNo">471</span><a name="line.471"></a>
<span class="sourceLineNo">472</span>    @Override public Map&lt;R, V2&gt; column(C columnKey) {<a name="line.472"></a>
<span class="sourceLineNo">473</span>      return Maps.transformValues(fromTable.column(columnKey), function);<a name="line.473"></a>
<span class="sourceLineNo">474</span>    }<a name="line.474"></a>
<span class="sourceLineNo">475</span><a name="line.475"></a>
<span class="sourceLineNo">476</span>    Function&lt;Cell&lt;R, C, V1&gt;, Cell&lt;R, C, V2&gt;&gt; cellFunction() {<a name="line.476"></a>
<span class="sourceLineNo">477</span>      return new Function&lt;Cell&lt;R, C, V1&gt;, Cell&lt;R, C, V2&gt;&gt;() {<a name="line.477"></a>
<span class="sourceLineNo">478</span>        @Override public Cell&lt;R, C, V2&gt; apply(Cell&lt;R, C, V1&gt; cell) {<a name="line.478"></a>
<span class="sourceLineNo">479</span>          return immutableCell(<a name="line.479"></a>
<span class="sourceLineNo">480</span>              cell.getRowKey(), cell.getColumnKey(),<a name="line.480"></a>
<span class="sourceLineNo">481</span>              function.apply(cell.getValue()));<a name="line.481"></a>
<span class="sourceLineNo">482</span>        }<a name="line.482"></a>
<span class="sourceLineNo">483</span>      };<a name="line.483"></a>
<span class="sourceLineNo">484</span>    }<a name="line.484"></a>
<span class="sourceLineNo">485</span><a name="line.485"></a>
<span class="sourceLineNo">486</span>    class CellSet extends TransformedCollection&lt;Cell&lt;R, C, V1&gt;, Cell&lt;R, C, V2&gt;&gt;<a name="line.486"></a>
<span class="sourceLineNo">487</span>        implements Set&lt;Cell&lt;R, C, V2&gt;&gt; {<a name="line.487"></a>
<span class="sourceLineNo">488</span>      CellSet() {<a name="line.488"></a>
<span class="sourceLineNo">489</span>        super(fromTable.cellSet(), cellFunction());<a name="line.489"></a>
<span class="sourceLineNo">490</span>      }<a name="line.490"></a>
<span class="sourceLineNo">491</span>      @Override public boolean equals(Object obj) {<a name="line.491"></a>
<span class="sourceLineNo">492</span>        return Sets.equalsImpl(this, obj);<a name="line.492"></a>
<span class="sourceLineNo">493</span>      }<a name="line.493"></a>
<span class="sourceLineNo">494</span>      @Override public int hashCode() {<a name="line.494"></a>
<span class="sourceLineNo">495</span>        return Sets.hashCodeImpl(this);<a name="line.495"></a>
<span class="sourceLineNo">496</span>      }<a name="line.496"></a>
<span class="sourceLineNo">497</span>      @Override public boolean contains(Object obj) {<a name="line.497"></a>
<span class="sourceLineNo">498</span>        if (obj instanceof Cell) {<a name="line.498"></a>
<span class="sourceLineNo">499</span>          Cell&lt;?, ?, ?&gt; cell = (Cell&lt;?, ?, ?&gt;) obj;<a name="line.499"></a>
<span class="sourceLineNo">500</span>          if (!Objects.equal(<a name="line.500"></a>
<span class="sourceLineNo">501</span>              cell.getValue(), get(cell.getRowKey(), cell.getColumnKey()))) {<a name="line.501"></a>
<span class="sourceLineNo">502</span>            return false;<a name="line.502"></a>
<span class="sourceLineNo">503</span>          }<a name="line.503"></a>
<span class="sourceLineNo">504</span>          return cell.getValue() != null<a name="line.504"></a>
<span class="sourceLineNo">505</span>              || fromTable.contains(cell.getRowKey(), cell.getColumnKey());<a name="line.505"></a>
<span class="sourceLineNo">506</span>        }<a name="line.506"></a>
<span class="sourceLineNo">507</span>        return false;<a name="line.507"></a>
<span class="sourceLineNo">508</span>      }<a name="line.508"></a>
<span class="sourceLineNo">509</span>      @Override public boolean remove(Object obj) {<a name="line.509"></a>
<span class="sourceLineNo">510</span>        if (contains(obj)) {<a name="line.510"></a>
<span class="sourceLineNo">511</span>          Cell&lt;?, ?, ?&gt; cell = (Cell&lt;?, ?, ?&gt;) obj;<a name="line.511"></a>
<span class="sourceLineNo">512</span>          fromTable.remove(cell.getRowKey(), cell.getColumnKey());<a name="line.512"></a>
<span class="sourceLineNo">513</span>          return true;<a name="line.513"></a>
<span class="sourceLineNo">514</span>        }<a name="line.514"></a>
<span class="sourceLineNo">515</span>        return false;<a name="line.515"></a>
<span class="sourceLineNo">516</span>      }<a name="line.516"></a>
<span class="sourceLineNo">517</span>    }<a name="line.517"></a>
<span class="sourceLineNo">518</span><a name="line.518"></a>
<span class="sourceLineNo">519</span>    CellSet cellSet;<a name="line.519"></a>
<span class="sourceLineNo">520</span><a name="line.520"></a>
<span class="sourceLineNo">521</span>    @Override public Set&lt;Cell&lt;R, C, V2&gt;&gt; cellSet() {<a name="line.521"></a>
<span class="sourceLineNo">522</span>      return (cellSet == null) ? cellSet = new CellSet() : cellSet;<a name="line.522"></a>
<span class="sourceLineNo">523</span>    }<a name="line.523"></a>
<span class="sourceLineNo">524</span><a name="line.524"></a>
<span class="sourceLineNo">525</span>    @Override public Set&lt;R&gt; rowKeySet() {<a name="line.525"></a>
<span class="sourceLineNo">526</span>      return fromTable.rowKeySet();<a name="line.526"></a>
<span class="sourceLineNo">527</span>    }<a name="line.527"></a>
<span class="sourceLineNo">528</span><a name="line.528"></a>
<span class="sourceLineNo">529</span>    @Override public Set&lt;C&gt; columnKeySet() {<a name="line.529"></a>
<span class="sourceLineNo">530</span>      return fromTable.columnKeySet();<a name="line.530"></a>
<span class="sourceLineNo">531</span>    }<a name="line.531"></a>
<span class="sourceLineNo">532</span><a name="line.532"></a>
<span class="sourceLineNo">533</span>    Collection&lt;V2&gt; values;<a name="line.533"></a>
<span class="sourceLineNo">534</span><a name="line.534"></a>
<span class="sourceLineNo">535</span>    @Override public Collection&lt;V2&gt; values() {<a name="line.535"></a>
<span class="sourceLineNo">536</span>      return (values == null)<a name="line.536"></a>
<span class="sourceLineNo">537</span>          ? values = Collections2.transform(fromTable.values(), function)<a name="line.537"></a>
<span class="sourceLineNo">538</span>          : values;<a name="line.538"></a>
<span class="sourceLineNo">539</span>    }<a name="line.539"></a>
<span class="sourceLineNo">540</span><a name="line.540"></a>
<span class="sourceLineNo">541</span>    Map&lt;R, Map&lt;C, V2&gt;&gt; createRowMap() {<a name="line.541"></a>
<span class="sourceLineNo">542</span>      Function&lt;Map&lt;C, V1&gt;, Map&lt;C, V2&gt;&gt; rowFunction =<a name="line.542"></a>
<span class="sourceLineNo">543</span>          new Function&lt;Map&lt;C, V1&gt;, Map&lt;C, V2&gt;&gt;() {<a name="line.543"></a>
<span class="sourceLineNo">544</span>            @Override public Map&lt;C, V2&gt; apply(Map&lt;C, V1&gt; row) {<a name="line.544"></a>
<span class="sourceLineNo">545</span>              return Maps.transformValues(row, function);<a name="line.545"></a>
<span class="sourceLineNo">546</span>            }<a name="line.546"></a>
<span class="sourceLineNo">547</span>          };<a name="line.547"></a>
<span class="sourceLineNo">548</span>      return Maps.transformValues(fromTable.rowMap(), rowFunction);<a name="line.548"></a>
<span class="sourceLineNo">549</span>    }<a name="line.549"></a>
<span class="sourceLineNo">550</span><a name="line.550"></a>
<span class="sourceLineNo">551</span>    Map&lt;R, Map&lt;C, V2&gt;&gt; rowMap;<a name="line.551"></a>
<span class="sourceLineNo">552</span><a name="line.552"></a>
<span class="sourceLineNo">553</span>    @Override public Map&lt;R, Map&lt;C, V2&gt;&gt; rowMap() {<a name="line.553"></a>
<span class="sourceLineNo">554</span>      return (rowMap == null) ? rowMap = createRowMap() : rowMap;<a name="line.554"></a>
<span class="sourceLineNo">555</span>    }<a name="line.555"></a>
<span class="sourceLineNo">556</span><a name="line.556"></a>
<span class="sourceLineNo">557</span>    Map&lt;C, Map&lt;R, V2&gt;&gt; createColumnMap() {<a name="line.557"></a>
<span class="sourceLineNo">558</span>      Function&lt;Map&lt;R, V1&gt;, Map&lt;R, V2&gt;&gt; columnFunction =<a name="line.558"></a>
<span class="sourceLineNo">559</span>          new Function&lt;Map&lt;R, V1&gt;, Map&lt;R, V2&gt;&gt;() {<a name="line.559"></a>
<span class="sourceLineNo">560</span>            @Override public Map&lt;R, V2&gt; apply(Map&lt;R, V1&gt; column) {<a name="line.560"></a>
<span class="sourceLineNo">561</span>              return Maps.transformValues(column, function);<a name="line.561"></a>
<span class="sourceLineNo">562</span>            }<a name="line.562"></a>
<span class="sourceLineNo">563</span>          };<a name="line.563"></a>
<span class="sourceLineNo">564</span>      return Maps.transformValues(fromTable.columnMap(), columnFunction);<a name="line.564"></a>
<span class="sourceLineNo">565</span>    }<a name="line.565"></a>
<span class="sourceLineNo">566</span><a name="line.566"></a>
<span class="sourceLineNo">567</span>    Map&lt;C, Map&lt;R, V2&gt;&gt; columnMap;<a name="line.567"></a>
<span class="sourceLineNo">568</span><a name="line.568"></a>
<span class="sourceLineNo">569</span>    @Override public Map&lt;C, Map&lt;R, V2&gt;&gt; columnMap() {<a name="line.569"></a>
<span class="sourceLineNo">570</span>      return (columnMap == null) ? columnMap = createColumnMap() : columnMap;<a name="line.570"></a>
<span class="sourceLineNo">571</span>    }<a name="line.571"></a>
<span class="sourceLineNo">572</span><a name="line.572"></a>
<span class="sourceLineNo">573</span>    @Override public boolean equals(@Nullable Object obj) {<a name="line.573"></a>
<span class="sourceLineNo">574</span>      if (obj == this) {<a name="line.574"></a>
<span class="sourceLineNo">575</span>        return true;<a name="line.575"></a>
<span class="sourceLineNo">576</span>      }<a name="line.576"></a>
<span class="sourceLineNo">577</span>      if (obj instanceof Table) {<a name="line.577"></a>
<span class="sourceLineNo">578</span>        Table&lt;?, ?, ?&gt; other = (Table&lt;?, ?, ?&gt;) obj;<a name="line.578"></a>
<span class="sourceLineNo">579</span>        return cellSet().equals(other.cellSet());<a name="line.579"></a>
<span class="sourceLineNo">580</span>      }<a name="line.580"></a>
<span class="sourceLineNo">581</span>      return false;<a name="line.581"></a>
<span class="sourceLineNo">582</span>    }<a name="line.582"></a>
<span class="sourceLineNo">583</span><a name="line.583"></a>
<span class="sourceLineNo">584</span>    @Override public int hashCode() {<a name="line.584"></a>
<span class="sourceLineNo">585</span>      return cellSet().hashCode();<a name="line.585"></a>
<span class="sourceLineNo">586</span>    }<a name="line.586"></a>
<span class="sourceLineNo">587</span><a name="line.587"></a>
<span class="sourceLineNo">588</span>    @Override public String toString() {<a name="line.588"></a>
<span class="sourceLineNo">589</span>      return rowMap().toString();<a name="line.589"></a>
<span class="sourceLineNo">590</span>    }<a name="line.590"></a>
<span class="sourceLineNo">591</span>  }<a name="line.591"></a>
<span class="sourceLineNo">592</span>  <a name="line.592"></a>
<span class="sourceLineNo">593</span>  /**<a name="line.593"></a>
<span class="sourceLineNo">594</span>   * Returns an unmodifiable view of the specified table. This method allows modules to provide<a name="line.594"></a>
<span class="sourceLineNo">595</span>   * users with "read-only" access to internal tables. Query operations on the returned table<a name="line.595"></a>
<span class="sourceLineNo">596</span>   * "read through" to the specified table, and attempts to modify the returned table, whether<a name="line.596"></a>
<span class="sourceLineNo">597</span>   * direct or via its collection views, result in an {@code UnsupportedOperationException}.<a name="line.597"></a>
<span class="sourceLineNo">598</span>   * <a name="line.598"></a>
<span class="sourceLineNo">599</span>   * &lt;p&gt;The returned table will be serializable if the specified table is serializable.<a name="line.599"></a>
<span class="sourceLineNo">600</span>   *<a name="line.600"></a>
<span class="sourceLineNo">601</span>   * &lt;p&gt;Consider using an {@link ImmutableTable}, which is guaranteed never to change.<a name="line.601"></a>
<span class="sourceLineNo">602</span>   * <a name="line.602"></a>
<span class="sourceLineNo">603</span>   * @param table<a name="line.603"></a>
<span class="sourceLineNo">604</span>   *          the table for which an unmodifiable view is to be returned<a name="line.604"></a>
<span class="sourceLineNo">605</span>   * @return an unmodifiable view of the specified table<a name="line.605"></a>
<span class="sourceLineNo">606</span>   * @since 11.0<a name="line.606"></a>
<span class="sourceLineNo">607</span>   */<a name="line.607"></a>
<span class="sourceLineNo">608</span>  public static &lt;R, C, V&gt; Table&lt;R, C, V&gt; unmodifiableTable(<a name="line.608"></a>
<span class="sourceLineNo">609</span>      Table&lt;? extends R, ? extends C, ? extends V&gt; table) {<a name="line.609"></a>
<span class="sourceLineNo">610</span>    return new UnmodifiableTable&lt;R, C, V&gt;(table);<a name="line.610"></a>
<span class="sourceLineNo">611</span>  }<a name="line.611"></a>
<span class="sourceLineNo">612</span>  <a name="line.612"></a>
<span class="sourceLineNo">613</span>  private static class UnmodifiableTable&lt;R, C, V&gt;<a name="line.613"></a>
<span class="sourceLineNo">614</span>      extends ForwardingTable&lt;R, C, V&gt; implements Serializable {<a name="line.614"></a>
<span class="sourceLineNo">615</span>    final Table&lt;? extends R, ? extends C, ? extends V&gt; delegate;<a name="line.615"></a>
<span class="sourceLineNo">616</span><a name="line.616"></a>
<span class="sourceLineNo">617</span>    UnmodifiableTable(Table&lt;? extends R, ? extends C, ? extends V&gt; delegate) {<a name="line.617"></a>
<span class="sourceLineNo">618</span>      this.delegate = checkNotNull(delegate);<a name="line.618"></a>
<span class="sourceLineNo">619</span>    }<a name="line.619"></a>
<span class="sourceLineNo">620</span><a name="line.620"></a>
<span class="sourceLineNo">621</span>    @SuppressWarnings("unchecked") // safe, covariant cast<a name="line.621"></a>
<span class="sourceLineNo">622</span>    @Override<a name="line.622"></a>
<span class="sourceLineNo">623</span>    protected Table&lt;R, C, V&gt; delegate() {<a name="line.623"></a>
<span class="sourceLineNo">624</span>      return (Table&lt;R, C, V&gt;) delegate;<a name="line.624"></a>
<span class="sourceLineNo">625</span>    }<a name="line.625"></a>
<span class="sourceLineNo">626</span><a name="line.626"></a>
<span class="sourceLineNo">627</span>    @Override<a name="line.627"></a>
<span class="sourceLineNo">628</span>    public Set&lt;Cell&lt;R, C, V&gt;&gt; cellSet() {<a name="line.628"></a>
<span class="sourceLineNo">629</span>      return Collections.unmodifiableSet(super.cellSet());<a name="line.629"></a>
<span class="sourceLineNo">630</span>    }<a name="line.630"></a>
<span class="sourceLineNo">631</span><a name="line.631"></a>
<span class="sourceLineNo">632</span>    @Override<a name="line.632"></a>
<span class="sourceLineNo">633</span>    public void clear() {<a name="line.633"></a>
<span class="sourceLineNo">634</span>      throw new UnsupportedOperationException();<a name="line.634"></a>
<span class="sourceLineNo">635</span>    }<a name="line.635"></a>
<span class="sourceLineNo">636</span><a name="line.636"></a>
<span class="sourceLineNo">637</span>    @Override<a name="line.637"></a>
<span class="sourceLineNo">638</span>    public Map&lt;R, V&gt; column(@Nullable C columnKey) {<a name="line.638"></a>
<span class="sourceLineNo">639</span>      return Collections.unmodifiableMap(super.column(columnKey));<a name="line.639"></a>
<span class="sourceLineNo">640</span>    }<a name="line.640"></a>
<span class="sourceLineNo">641</span><a name="line.641"></a>
<span class="sourceLineNo">642</span>    @Override<a name="line.642"></a>
<span class="sourceLineNo">643</span>    public Set&lt;C&gt; columnKeySet() {<a name="line.643"></a>
<span class="sourceLineNo">644</span>      return Collections.unmodifiableSet(super.columnKeySet());<a name="line.644"></a>
<span class="sourceLineNo">645</span>    }<a name="line.645"></a>
<span class="sourceLineNo">646</span><a name="line.646"></a>
<span class="sourceLineNo">647</span>    @Override<a name="line.647"></a>
<span class="sourceLineNo">648</span>    public Map&lt;C, Map&lt;R, V&gt;&gt; columnMap() {<a name="line.648"></a>
<span class="sourceLineNo">649</span>      Function&lt;Map&lt;R, V&gt;, Map&lt;R, V&gt;&gt; wrapper = unmodifiableWrapper();<a name="line.649"></a>
<span class="sourceLineNo">650</span>      return Collections.unmodifiableMap(Maps.transformValues(super.columnMap(), wrapper));<a name="line.650"></a>
<span class="sourceLineNo">651</span>    }<a name="line.651"></a>
<span class="sourceLineNo">652</span><a name="line.652"></a>
<span class="sourceLineNo">653</span>    @Override<a name="line.653"></a>
<span class="sourceLineNo">654</span>    public V put(@Nullable R rowKey, @Nullable C columnKey, @Nullable V value) {<a name="line.654"></a>
<span class="sourceLineNo">655</span>      throw new UnsupportedOperationException();<a name="line.655"></a>
<span class="sourceLineNo">656</span>    }<a name="line.656"></a>
<span class="sourceLineNo">657</span><a name="line.657"></a>
<span class="sourceLineNo">658</span>    @Override<a name="line.658"></a>
<span class="sourceLineNo">659</span>    public void putAll(Table&lt;? extends R, ? extends C, ? extends V&gt; table) {<a name="line.659"></a>
<span class="sourceLineNo">660</span>      throw new UnsupportedOperationException();<a name="line.660"></a>
<span class="sourceLineNo">661</span>    }<a name="line.661"></a>
<span class="sourceLineNo">662</span><a name="line.662"></a>
<span class="sourceLineNo">663</span>    @Override<a name="line.663"></a>
<span class="sourceLineNo">664</span>    public V remove(@Nullable Object rowKey, @Nullable Object columnKey) {<a name="line.664"></a>
<span class="sourceLineNo">665</span>      throw new UnsupportedOperationException();<a name="line.665"></a>
<span class="sourceLineNo">666</span>    }<a name="line.666"></a>
<span class="sourceLineNo">667</span><a name="line.667"></a>
<span class="sourceLineNo">668</span>    @Override<a name="line.668"></a>
<span class="sourceLineNo">669</span>    public Map&lt;C, V&gt; row(@Nullable R rowKey) {<a name="line.669"></a>
<span class="sourceLineNo">670</span>      return Collections.unmodifiableMap(super.row(rowKey));<a name="line.670"></a>
<span class="sourceLineNo">671</span>    }<a name="line.671"></a>
<span class="sourceLineNo">672</span><a name="line.672"></a>
<span class="sourceLineNo">673</span>    @Override<a name="line.673"></a>
<span class="sourceLineNo">674</span>    public Set&lt;R&gt; rowKeySet() {<a name="line.674"></a>
<span class="sourceLineNo">675</span>      return Collections.unmodifiableSet(super.rowKeySet());<a name="line.675"></a>
<span class="sourceLineNo">676</span>    }<a name="line.676"></a>
<span class="sourceLineNo">677</span><a name="line.677"></a>
<span class="sourceLineNo">678</span>    @Override<a name="line.678"></a>
<span class="sourceLineNo">679</span>    public Map&lt;R, Map&lt;C, V&gt;&gt; rowMap() {<a name="line.679"></a>
<span class="sourceLineNo">680</span>      Function&lt;Map&lt;C, V&gt;, Map&lt;C, V&gt;&gt; wrapper = unmodifiableWrapper();<a name="line.680"></a>
<span class="sourceLineNo">681</span>      return Collections.unmodifiableMap(Maps.transformValues(super.rowMap(), wrapper));<a name="line.681"></a>
<span class="sourceLineNo">682</span>    }<a name="line.682"></a>
<span class="sourceLineNo">683</span><a name="line.683"></a>
<span class="sourceLineNo">684</span>    @Override<a name="line.684"></a>
<span class="sourceLineNo">685</span>    public Collection&lt;V&gt; values() {<a name="line.685"></a>
<span class="sourceLineNo">686</span>      return Collections.unmodifiableCollection(super.values());<a name="line.686"></a>
<span class="sourceLineNo">687</span>    }<a name="line.687"></a>
<span class="sourceLineNo">688</span>    <a name="line.688"></a>
<span class="sourceLineNo">689</span>    private static final long serialVersionUID = 0;<a name="line.689"></a>
<span class="sourceLineNo">690</span>  }<a name="line.690"></a>
<span class="sourceLineNo">691</span><a name="line.691"></a>
<span class="sourceLineNo">692</span>  /**<a name="line.692"></a>
<span class="sourceLineNo">693</span>   * Returns an unmodifiable view of the specified row-sorted table. This method allows modules to<a name="line.693"></a>
<span class="sourceLineNo">694</span>   * provide users with "read-only" access to internal tables. Query operations on the returned<a name="line.694"></a>
<span class="sourceLineNo">695</span>   * table "read through" to the specified table, and attemps to modify the returned table, whether<a name="line.695"></a>
<span class="sourceLineNo">696</span>   * direct or via its collection views, result in an {@code UnsupportedOperationException}.<a name="line.696"></a>
<span class="sourceLineNo">697</span>   * <a name="line.697"></a>
<span class="sourceLineNo">698</span>   * &lt;p&gt;The returned table will be serializable if the specified table is serializable.<a name="line.698"></a>
<span class="sourceLineNo">699</span>   * <a name="line.699"></a>
<span class="sourceLineNo">700</span>   * @param table the row-sorted table for which an unmodifiable view is to be returned<a name="line.700"></a>
<span class="sourceLineNo">701</span>   * @return an unmodifiable view of the specified table<a name="line.701"></a>
<span class="sourceLineNo">702</span>   * @since 11.0<a name="line.702"></a>
<span class="sourceLineNo">703</span>   */<a name="line.703"></a>
<span class="sourceLineNo">704</span>  @Beta<a name="line.704"></a>
<span class="sourceLineNo">705</span>  public static &lt;R, C, V&gt; RowSortedTable&lt;R, C, V&gt; unmodifiableRowSortedTable(<a name="line.705"></a>
<span class="sourceLineNo">706</span>      RowSortedTable&lt;R, ? extends C, ? extends V&gt; table) {<a name="line.706"></a>
<span class="sourceLineNo">707</span>    /*<a name="line.707"></a>
<span class="sourceLineNo">708</span>     * It's not ? extends R, because it's technically not covariant in R. Specifically,<a name="line.708"></a>
<span class="sourceLineNo">709</span>     * table.rowMap().comparator() could return a comparator that only works for the ? extends R.<a name="line.709"></a>
<span class="sourceLineNo">710</span>     * Collections.unmodifiableSortedMap makes the same distinction.<a name="line.710"></a>
<span class="sourceLineNo">711</span>     */<a name="line.711"></a>
<span class="sourceLineNo">712</span>    return new UnmodifiableRowSortedMap&lt;R, C, V&gt;(table);<a name="line.712"></a>
<span class="sourceLineNo">713</span>  }<a name="line.713"></a>
<span class="sourceLineNo">714</span>  <a name="line.714"></a>
<span class="sourceLineNo">715</span>  static final class UnmodifiableRowSortedMap&lt;R, C, V&gt; extends UnmodifiableTable&lt;R, C, V&gt;<a name="line.715"></a>
<span class="sourceLineNo">716</span>      implements RowSortedTable&lt;R, C, V&gt; {<a name="line.716"></a>
<span class="sourceLineNo">717</span><a name="line.717"></a>
<span class="sourceLineNo">718</span>    public UnmodifiableRowSortedMap(RowSortedTable&lt;R, ? extends C, ? extends V&gt; delegate) {<a name="line.718"></a>
<span class="sourceLineNo">719</span>      super(delegate);<a name="line.719"></a>
<span class="sourceLineNo">720</span>    }<a name="line.720"></a>
<span class="sourceLineNo">721</span><a name="line.721"></a>
<span class="sourceLineNo">722</span>    @Override<a name="line.722"></a>
<span class="sourceLineNo">723</span>    protected RowSortedTable&lt;R, C, V&gt; delegate() {<a name="line.723"></a>
<span class="sourceLineNo">724</span>      return (RowSortedTable&lt;R, C, V&gt;) super.delegate();<a name="line.724"></a>
<span class="sourceLineNo">725</span>    }<a name="line.725"></a>
<span class="sourceLineNo">726</span><a name="line.726"></a>
<span class="sourceLineNo">727</span>    @Override<a name="line.727"></a>
<span class="sourceLineNo">728</span>    public SortedMap&lt;R, Map&lt;C, V&gt;&gt; rowMap() {<a name="line.728"></a>
<span class="sourceLineNo">729</span>      Function&lt;Map&lt;C, V&gt;, Map&lt;C, V&gt;&gt; wrapper = unmodifiableWrapper();<a name="line.729"></a>
<span class="sourceLineNo">730</span>      return Collections.unmodifiableSortedMap(Maps.transformValues(delegate().rowMap(), wrapper));<a name="line.730"></a>
<span class="sourceLineNo">731</span>    }<a name="line.731"></a>
<span class="sourceLineNo">732</span><a name="line.732"></a>
<span class="sourceLineNo">733</span>    @Override<a name="line.733"></a>
<span class="sourceLineNo">734</span>    public SortedSet&lt;R&gt; rowKeySet() {<a name="line.734"></a>
<span class="sourceLineNo">735</span>      return Collections.unmodifiableSortedSet(delegate().rowKeySet());<a name="line.735"></a>
<span class="sourceLineNo">736</span>    }<a name="line.736"></a>
<span class="sourceLineNo">737</span><a name="line.737"></a>
<span class="sourceLineNo">738</span>    private static final long serialVersionUID = 0;<a name="line.738"></a>
<span class="sourceLineNo">739</span>  }<a name="line.739"></a>
<span class="sourceLineNo">740</span><a name="line.740"></a>
<span class="sourceLineNo">741</span>  @SuppressWarnings("unchecked")<a name="line.741"></a>
<span class="sourceLineNo">742</span>  private static &lt;K, V&gt; Function&lt;Map&lt;K, V&gt;, Map&lt;K, V&gt;&gt; unmodifiableWrapper() {<a name="line.742"></a>
<span class="sourceLineNo">743</span>    return (Function) UNMODIFIABLE_WRAPPER;<a name="line.743"></a>
<span class="sourceLineNo">744</span>  }<a name="line.744"></a>
<span class="sourceLineNo">745</span><a name="line.745"></a>
<span class="sourceLineNo">746</span>  private static final Function&lt;? extends Map&lt;?, ?&gt;, ? extends Map&lt;?, ?&gt;&gt; UNMODIFIABLE_WRAPPER =<a name="line.746"></a>
<span class="sourceLineNo">747</span>      new Function&lt;Map&lt;Object, Object&gt;, Map&lt;Object, Object&gt;&gt;() {<a name="line.747"></a>
<span class="sourceLineNo">748</span>        @Override<a name="line.748"></a>
<span class="sourceLineNo">749</span>        public Map&lt;Object, Object&gt; apply(Map&lt;Object, Object&gt; input) {<a name="line.749"></a>
<span class="sourceLineNo">750</span>          return Collections.unmodifiableMap(input);<a name="line.750"></a>
<span class="sourceLineNo">751</span>        }<a name="line.751"></a>
<span class="sourceLineNo">752</span>      };<a name="line.752"></a>
<span class="sourceLineNo">753</span>}<a name="line.753"></a>




























































</pre>
</div>
</body>
</html>
